[MIPS] Malta: check the PCI clock frequency in a separate function

This patch adds a separate short and sweet function to check the
PCI clock frequency. This is to improve readability of the Malta
setup code.

Along the way, a couple of coding style violations are fixed.

No functional changes introduced.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 25 insertions, 18 deletions

diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index d051405a2809..79d74ea75bc4 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -108,6 +108,30 @@ void __init fd_activate(void)
 }
 #endif
 
+#ifdef CONFIG_BLK_DEV_IDE
+static void __init pci_clock_check(void)
+{
+        unsigned int __iomem *jmpr_p =
+                (unsigned int *) ioremap(MALTA_JMPRS_REG, sizeof(unsigned int));
+        int jmpr = (__raw_readl(jmpr_p) >> 2) & 0x07;
+        static const int pciclocks[] __initdata = {
+                33, 20, 25, 30, 12, 16, 37, 10
+        };
+        int pciclock = pciclocks[jmpr];
+        char *argptr = prom_getcmdline();
+
+        if (pciclock != 33 && !strstr(argptr, "idebus=")) {
+                printk(KERN_WARNING "WARNING: PCI clock is %dMHz, "
+                                "setting idebus\n", pciclock);
+                argptr += strlen(argptr);
+                sprintf(argptr, " idebus=%d", pciclock);
+                if (pciclock < 20 || pciclock > 66)
+                        printk(KERN_WARNING "WARNING: IDE timing "
+                                        "calculations will be incorrect\n");
+        }
+}
+#endif
+
 void __init plat_mem_setup(void)
 {
         unsigned int i;
@@ -171,24 +195,7 @@ void __init plat_mem_setup(void)
 #endif
 
 #ifdef CONFIG_BLK_DEV_IDE
-        /* Check PCI clock */
-        {
-                unsigned int __iomem *jmpr_p = (unsigned int *) ioremap(MALTA_JMPRS_REG, sizeof(unsigned int));
-                int jmpr = (__raw_readl(jmpr_p) >> 2) & 0x07;
-                static const int pciclocks[] __initdata = {
-                        33, 20, 25, 30, 12, 16, 37, 10
-                };
-                int pciclock = pciclocks[jmpr];
-                char *argptr = prom_getcmdline();
-
-                if (pciclock != 33 && !strstr (argptr, "idebus=")) {
-                        printk("WARNING: PCI clock is %dMHz, setting idebus\n", pciclock);
-                        argptr += strlen(argptr);
-                        sprintf(argptr, " idebus=%d", pciclock);
-                        if (pciclock < 20 || pciclock > 66)
-                                printk("WARNING: IDE timing calculations will be incorrect\n");
-                }
-        }
+        pci_clock_check();
 #endif
 #ifdef CONFIG_BLK_DEV_FD
         fd_activate();